Braking mechanism for coaster wagons



P 9- E. s. SHOWERS 1,726,967

BRAKING MECHANISM FOR COASTER WAGONS Filed April 12, 1927 amen 1 :04: flflBfiau/ers Patented Sept. 3, 1929.

ERNEST S. SHOWERS, OE CHAMPION, FlfZICI-IIGAII.

BRAKING MECHANISM FOR COASTEBJ \VAGONS.

Application filed April 12,

The object of this invention is to provide brake for coaster wagons. and particularly to improve upon the construction illustrated in my Patent #1,28,559, granted on the 10th day of May 1927.

A particular object is to provide fixed braking disks in connection with two rear disk wheels, and provide means whereby the rear disk wheels may be forced toward the disks in order to put on the brakes, and provide means for urging the wheels away from the disks when it is desired that the wagon shall run free.

My invention is illustrated in the accompanying drawings wherein Figure 1 is a longitudinal sectional view of a wagon having braking mechanism constructed in accordance with my invention.

Figure 2 is a rear elevation partly in section of the wagon.

Figure 3 is a fragmentary bottom plan view showing the brake guiding means.

Referring to these drawings. the wagon platform 37 is supported on the front wheels 38 by means of a bolster member 39 supportinc; a bolster 40, this bolster being oscillatable by the steering mechanism, as for instance, by means of the steering column 41. Any suitable steering mechanism may be used.

Between the platform 39 and the rear axle sections and supporting the body from the r ar axle sections is a bolster 42, the lower edge of which is grooved at 43 to receive the tubular rear axle sections 44. Through each tubular member 44 is a rod 45, the inner end. of which is angularly bent and connected to an operatin member as will be later stated. This rod extends through the corresponding tube 44 and carries upon it a. cup-shaped cap 46 bearing against the washer 47. This bears against a disk wheel 48 rotatably mounted upon the corresponding tubular member 44. Mounted upon the tubular member 44 inward of the disk wheel 48 is a support 49 carrying the annular braking disk 50 adapted to bear against the wheel 48 when the wheel is shifted and thus brake the same. The cup-shaped member 46 is mounted upon the rod 45 and extends over the projecting end of a tube 44 so that the washer 47 bears against the wheel. A nut 51 holds the cup-shaped member 46 in place. The inner ends of the rods 45 are angular, as at 45. The angular ends of the rods 45 are 1927'. Serial No. 183,10.

extended through slots 52* formed in the lower ends of levers 52. The upper ends of the levers are forced apart by a longitudinally extending rod or bar 53 having a wedgeshaped rear end and mounted for longitudinal movement on the wagon body. lVhen these rods 45 are drawn towards each other the cup-shaped members 46 dra the disk wheels toward aid brakes. lVhen the rods 45 are released the disk wheels run free again. The object of the cup-shaped members 46 is to give room for the disk wheels to be forced against the brake disks awa from the ends of the tubes 44.

Any suitable means may be used for bold ing the rods 45 from rotation and it will be seen that the angular ends 45 of t rods, extending through the levers 53, will hold these rods from rotation with the wheel Any other means to this, however. nay be used. I have illustrated springs 54 which urge the wheels away from the brake disks 50, but I have found in actual practice that the springs 54 are not absolutely nee the construction riustrated as the wh n i run away from the brake dis brake disks are forced to the b1 The wheels will not run toward the b1 ake disks unless thrown against the same, It will be disks of the noted that the wheel 48 is supported upon the tubular member instead of bein supported merely upon a rod as i ustrmed in my pending apoli cation above referred to as the tubular member which consti utes an axle section is not only stronger than the rod itself, but is furthermore reinforced by the rod extending through it.

I do not wish to be limited to the details of construction except defined in the ap pended claims. A

I claim 1. A wagon including a hollow axle section, a disk wheel mounted thereon and braking means comprising an annular brake disk disposed concentric to the axle, and means for shifting the wheel toward the brake disk.

2. In a wagon, hollow axle sections, disk wheels mounted thereon rods extending through the axle sections and connected to said wheels to shift them longitudin ally with relation to the axle sections, brake disks disposed inward of the wheels and mounted upon the axle sections, and means for shifting said rods to shift the wheels against the brake disks.

3. The combination with an axle and a' disk wheel mounted loosely thereon, a brake member mounted upon the axle, and adapted to bear against the side face of the disk wheel, and means for drawing the disk wheel inward toward the braking member.

4. In a wagon, a hollow axle section, a disk wheel mounted upon the extremity thereof and rotatable therearound and shiftable longitudinally upon the axle section, a rod extending through the axle section and having means on one extremity for engaging the disk wheel, the rod being longitudinally shiftable to shift the disk wheel inward, and a brake disk operatively supported upon the axle section and against which the Wheel is adapted to be shifted by said rod.

5. In a wagon, a hollow axle section, a disk wheel mounted upon the extremity thereof and rotatable therea-round and shiftable longitudinally upon the axle section a rod extending through the axle section and having means on one extremity for engaging the disk wheel, the rod being longitudinally shiftable to shift the disk wheel inward, a brake disk operatively supported upon the axle section and against which the wheel is adapted to be shifted by said rod, and resilient means urging the disk Wheel away from the brake disk.

6. In a wagon a bolster, tubular members mounted upon said bolster and projecting beyond the same, disk wheels rotatably mounted upon the projecting ends of the tubular members and longitudinally shiftable thereon, rods extending through the tubular members and beyond the ends thereof, nuts mounted upon the extremities of the rods and operatively bearing against the exterior faces of the disk wheels, brake disks mounted upon the axle sections, one for each wheel, and manually operable means for shifting the rods toward each other to shift the wheels into contact with the brake disks.

In testimony whereof I hereunto afiix my signature.

ERNEST S. SHOWERS. 

